Re: [PATCH net-next 04/12] net: hns3: return 0 and print warning when hit duplicate MAC

From: tanhuazhong
Date: Wed Apr 03 2019 - 05:52:49 EST




On 2019/4/3 17:15, Sergei Shtylyov wrote:
On 03.04.2019 6:07, Huazhong Tan wrote:

From: Peng Li <lipeng321@xxxxxxxxxx>

When set 2 same MAC to different function of one port, IMP
will return error as the later one may modify the origin one.
This will cause bond fail for 2 VFs of one port.

Driver just print warning and return 0 with this patch, so
if set same MAC address, it will return 0 but do not really
configure to HW.

ÂÂ "To" not needed here.


ok, thanks.

Signed-off-by: Peng Li <lipeng321@xxxxxxxxxx>
Signed-off-by: Huazhong Tan <tanhuazhong@xxxxxxxxxx>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index e742a05..d45789e 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -5962,8 +5962,11 @@ int hclge_add_uc_addr_common(struct hclge_vport *vport,
ÂÂÂÂÂ }
ÂÂÂÂÂ /* check if we just hit the duplicate */
-ÂÂÂ if (!ret)
-ÂÂÂÂÂÂÂ ret = -EINVAL;
+ÂÂÂ if (!ret) {
+ÂÂÂÂÂÂÂ dev_warn(&hdev->pdev->dev, "VF %d mac(%pM) has been existed\n",

ÂÂ Maybe just "exists"? The grammar is certainly wrong as is. :-)

+ÂÂÂÂÂÂÂÂÂÂÂÂ vport->vport_id, addr);
+ÂÂÂÂÂÂÂ return 0;
+ÂÂÂ }
ÂÂÂÂÂ dev_err(&hdev->pdev->dev,
ÂÂÂÂÂÂÂÂÂ "PF failed to add unicast entry(%pM) in the MAC table\n",

MBR, Sergei


ok, thanks.

.